A metal spoon is left standing in a cup of hot water. The handle of the spoon soon becomes warm. Which statement explains why the handle becomes warm?
The delocalised electrons in the metal are held in fixed positions
The layers of atoms in the metal slide over each other as it warms
The delocalised electrons in the metal transfer energy along the spoon
The positive metal ions in the metal transfer energy along the spoon
42 exam-style questions on AQA GCSE Chemistry 2.2 How bonding and structure are related to the properties of substances, covering 2.2.1a The three states of matter, 2.2.1b Limitations of the simple particle model, 2.2.2 State symbols in chemical equations, 2.2.3 Properties of ionic compounds, 2.2.4 Properties of small molecules, 2.2.5 Polymers, 2.2.6 Giant covalent structures, 2.2.7 Properties of metals and alloys, and 2.2.8 Metals as conductors. Each one has a worked solution and a mark scheme showing where the marks go.